What Exactly Happened on AA924?

Was this some sort of set-up? It certainly is weird, if nothing else.

At least one passenger aboard American Airlines Flight 924 maintains the federal air marshals were a little too quick on the draw when they shot and killed Rigoberto Alpizar as he frantically attempted to run off the airplane shortly before take-off.

"I don't think they needed to use deadly force with the guy," says John McAlhany, a 44-year-old construction worker from Sebastian, Fla. "He was getting off the plane." McAlhany also maintains that Alpizar never mentioned having a bomb.

"I never heard the word 'bomb' on the plane," McAlhany told TIME in a telephone interview. "I never heard the word bomb until the FBI asked me did you hear the word bomb. That is ridiculous." Even the authorities didn't come out and say bomb, McAlhany says. "They asked, 'Did you hear anything about the b-word?'" he says. "That's what they called it."

Was this simply a stunt of some kind, or Air Marshals with itchy triggers, or something deeper?